Surprisingly dense exoplanet challenges planet formation theories

ScienceDaily
Aug 4, 2020, 12:22 pm131 pts
New detailed observations reveal a young exoplanet, orbiting a young star in the Hyades cluster, that is unusually dense for its size and age. Weighing in at 25 Earth-masses, and slightly smaller than Neptune, this exoplanet's existence is at odds with the predictions of leading planet formation theories.

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